问题 单项选择题

跨度≤2m的除悬臂板、梁以外的其他梁、板、拱的模板拆除,混凝土强度应达到设计强度等级的( )

A.50%
B.60%
C.70%
D.100%

答案

参考答案:A

解析: 混凝土结构的承重模板,应在混凝土达到下列强度后(按混凝土设计强度等级的百分率计),才能拆除。①悬臂板、梁:跨度≤2m,70%;跨度>2m,100%。②其他梁、板、拱:跨度≤2m,50%;跨度2~8m,70%;跨度>8m,100%。

多项选择题
完形填空

III. 完形填空

All over the world people enjoy sports. Sports help people to (37)_______ healthy and happy, and to live longer.

Many people like to watch others (38)_______ games. They buy tickets or (39)______ their TV sets to watch the games.

Sports change (40)_______ the seasons. People play different games in winter and summer. Swimming is (41)________ in warm weather, but skating is good in winter.

Games and sports often grow from people’s work and everyday activities(活动). The Arabs use horses or camels(骆驼) in much of their everyday life. They use them in their sports, too. It is the same (42)_______ people in Xingjiang and Inner Mongolia (内蒙古). Millions of people hunt and fish (43)________ a living, but hunting and fishing are very good sports too.

Sports are so interesting (44)_________ people everywhere like them. Football, (45)_______, has spread (46)________ the world. Swimming is popular in all countries near the sea or in those (47)________ many rivers. What fun it is to jump into a pool or lake, whether in China, Egypt or India! And think of the people in cold countries. Some sports or games go back (48)_________ of years, (49)_________ running or jumping. Chinese wushu, for example, has a long history. But basketball and football are rather new. (50)_________one is a hundred years old yet. People from different countries may not be able to understand each other, but (51)__________ playing a game together they often become good friends.

37. A. get           B. turn          C. keep        D. develop

38. A. played        B. to play         C. playing         D. play

39. A. turn          B. turn on         C. turn down       D. turn around

40. A. from         B. in              C. into            D. with

41. A. fun          B. excite          C. funny          D. excited

42. A. with         B. as             C. to              D. from

43. A. because of    B. for            C. out of           D. from

44. A. as          B. when          C. that             D. which

45. A. however      B. for example     C. also            D. too

46. A. to           B. around         C. on              D. about

47. A. near          B. from          C. in              D. with

48. A. thousand      B. a thousand     C. thousands        D. several thousand

49. A. as            B. such          C. so              D. such as

50. A. No           B. Neither        C. /               D. a

51. A. before        B. over           C. after           D. in